Known as ‘silent sweep’ in the industry, the hands move in a constant sweeping motion rather than a stepped tick. So you won’t hear any ticking but if your hearing is particularly sensitive in a completely silent room you may hear a very quiet whirring. Features & Specifications: – Dimensions: HWD 20.3 x 20.2 x 6.5cm;– Materials: Silicone coated acrylic case, metal hands and?cream dial– Colour: Matte black case with cream dial– Movement: Quartz ‘Silent Sweep’– Power: Requires 1 x high quality branded alkaline AA battery (not included)